Feature Extraction from Sketches of Objects

ABSTRACT

The automatic reconstruction of a 3D object from a sketch drawn as a line drawing has been very crucial research area since decades, especially in Computer-Aided Design and Computer Vision. Conventionally most of proposed methods have applied the technique of line labelling. However, generally this technique could be difficult for the reconstruction when the sketch includes many curves. In this paper, a method of reconstructing a 3D object as a solid model from a sketch by extracting features repeatedly is proposed. In the method, the sketches of cuboids, cylinders, holes and fillets are applied as features. In this paper, the algorithm of the method is explained in detail, and the effectiveness of the algorithm is explained by six examples that are difficult for conventional methods.

GRAPHICAL ABSTRACT

Keywords:

• sketch
• line drawing
• feature extraction
• automatic reconstruction
• 3D object
• solid model
• line labelling